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b42d25c4 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "cursorpair.h" | |
22 | ||
23 | #include "view.h" | |
24 | ||
0ba172cf JH |
25 | #include <algorithm> |
26 | ||
27 | using namespace std; | |
28 | ||
b42d25c4 JH |
29 | namespace pv { |
30 | namespace view { | |
31 | ||
32 | CursorPair::CursorPair(const View &view) : | |
33 | _first(view, 0.0), | |
34 | _second(view, 1.0), | |
35 | _view(view) | |
36 | { | |
37 | } | |
38 | ||
39 | const Cursor& CursorPair::first() const | |
40 | { | |
41 | return _first; | |
42 | } | |
43 | ||
44 | Cursor& CursorPair::first() | |
45 | { | |
46 | return _first; | |
47 | } | |
48 | ||
49 | const Cursor& CursorPair::second() const | |
50 | { | |
51 | return _second; | |
52 | } | |
53 | ||
54 | Cursor& CursorPair::second() | |
55 | { | |
56 | return _second; | |
57 | } | |
58 | ||
0ba172cf JH |
59 | void CursorPair::draw_viewport_background(QPainter &p, |
60 | const QRect &rect) | |
61 | { | |
62 | p.setPen(Qt::NoPen); | |
63 | p.setBrush(QBrush(View::CursorAreaColour)); | |
64 | ||
65 | const float x1 = (_first.time() - _view.offset()) / _view.scale(); | |
66 | const float x2 = (_second.time() - _view.offset()) / _view.scale(); | |
67 | const int l = (int)max(min(x1, x2), 0.0f); | |
68 | const int r = (int)min(max(x1, x2), (float)rect.width()); | |
69 | ||
70 | p.drawRect(l, 0, r - l, rect.height()); | |
71 | } | |
72 | ||
73 | void CursorPair::draw_viewport_foreground(QPainter &p, | |
74 | const QRect &rect) | |
75 | { | |
76 | _first.paint(p, rect); | |
77 | _second.paint(p, rect); | |
78 | } | |
79 | ||
b42d25c4 JH |
80 | } // namespace view |
81 | } // namespace pv |